Does anyone remember the movie Mixed Nuts? Awful movie, and maybe my first hint that comedy legends like Steve Martin could actually make bad movies (it was one of many bad movies for Martin in the 90s). It did, however, feature a number of people before they were stars: Jon Stewart was in it, it was one of Haley Joel Osment’s first roles, and it was one of Adam Sandler’s first feature film roles (he was the only good thing about the movie).

It was also the first role of Liev Schreiber, who appeared in the movie in a dress, where he had a dancing scene with Steve Martin. It was in the rehearsals of that scene in which a mortified Schreiber — meeting Martin for the first time — got the best erection of his life, which was incredibly unfortunate for both himself and Steve Martin.

Here is Schreiber with the full story.

And that, folks, is why you never want to meet a comedy legend while wearing sweat pants.

Dustin is the founder and co-owner of Pajiba. You may email him here or follow him on Twitter.